<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>TEST</title>
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>

    <script src="https://cdn.bootcss.com/Chart.js/2.7.3/Chart.min.js"></script>

    <script src="https://cdn.bootcss.com/echarts/4.2.0-rc.2/echarts.min.js"></script>

    <script type="text/javascript" src="test-chart.js"></script>
</head>

<body>

<div style="width: 400px; height: 400px">
    <canvas id="myChart" width="400" height="400"></canvas>
</div>

<div id="main" style="width: 400px;height:400px;"></div>

</body>
</html>